package jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

public class JDBCDemo3 {
    public static void main(String[] args) {
        try {
            //1)加载驱动（Mysql驱动）
            Class.forName("com.mysql.cj.jdbc.Driver");
            Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true", "root", "root");
            Statement statement = connection.createStatement();
            /*
                UPDATE user
                SET password='666666',nickname='老三',age=50
                WHERE id=1
             */
            String sql = "UPDATE user " +
                    "SET password='666666',nickname='老三',age=50 " +
                    "WHERE id=1";

            int num = statement.executeUpdate(sql);
            if(num>0){
                System.out.println("修改成功");
            }else{
                System.out.println("修改失败");
            }
            connection.close();
        } catch (Exception e) {
            e.printStackTrace();
        }

    }
}
